When multiple engagements are happening, removing the minimap info may mean the difference between dodging a grenade and losing a squad. I think the problem with the ability is not its usefulness, but rather that you don't get immediate feedback about how useful/useless it was in any given case, meaning that it's hard to learn to use it well and most players completely forget about it.
It is, however, widely used in the alternative universe where CoH is a serious competitive game with hundreds of really good players.
So should be actually used during an engagement BEFORE starting a secondary engagement where i am supposed to use infiltration nade or bundled without the enemy being aware of it ?
Any possible application other than this ?